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One-loop impact factor for the emission of two gluons

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arxiv 2103.16593 v1 pith:NE3MJMO3 submitted 2021-03-30 hep-ph hep-th

Marc Canay , Vittorio Del Duca This is my paper
classification hep-phhep-th
keywords factorimpactone-loopamplitudesemissionevaluategluonskinematics
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abstract

We consider one-loop five-point QCD amplitudes in next-to-multi-Regge kinematics, and evaluate the one-loop impact factor for the emission of two gluons. This is the last ingredient which is necessary to evaluate the gluon-jet impact factor at NNLO accuracy in $\as$. It is also the first instance in which loop-level QCD amplitudes are evaluated in next-to-multi-Regge kinematics, which requires to apply a different reggeisation ansatz to each colour-ordered amplitude.

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  1. Regge factorization of tree-level QCD amplitudes using a minimal set of lightcone variables

    hep-ph 2025-06 conditional novelty 6.0 of 10

    All tree-level QCD multi-Regge emission vertices with up to four final-state partons are extracted in a minimal lightcone-variable frame and collected in the MREV Mathematica library.

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